About the Authors

Tianyu Xie

Roles Data curation, Formal analysis, Investigation, Methodology, Software, Visualization, Writing – original draft, Writing – review & editing

Affiliation School of Mathematical Sciences, Peking University, Beijing, China

Yicong Mao

Roles Investigation, Software, Visualization, Writing – original draft

Affiliation School of Public Health, Peking University, Beijing, China

Cheng Zhang

Roles Conceptualization, Data curation, Formal analysis, Funding acquisition, Methodology, Project administration, Resources, Supervision, Validation, Writing – review & editing

chengzhang@math.pku.edu.cn

Affiliations School of Mathematical Sciences, Peking University, Beijing, China, Center for Statistical Science, Peking University, Beijing, China

Competing Interests

The authors have declared that no competing interests exist.